Motor for street-cars



(No Model.) W H PATTON 3 Sheets-Sheet 1.

MOTOR FOR STREET CARS.

No. 434,993. Patented Aug. 26, 1890.

(No Model.) 3 Sheets-Sheet 2. W. H. PATTON.

MOTOR FOR STREET CARS.

No. 434,993. Patented Aug. 26, 1890.

(No Model.) 3 sheets-Sheet 3. W. H. PATTON.

MOTOR FOR STREET CARS.

Patentd Aug. 26, 1899.

UNITED STATES PATENT OFFICE.

WILLIAM II. PATTON, OF CHICAGO, ILLINOIs, ASSIGNOR ro THE PATTON MOTOR COMPANY, OF PUEBLO, COLORAD MOTOR FOR STREET-CARS.

SPECIFICATION forming part of Letters Patent No. 434,993, dated August 26, 1890.

Serial No. 326,522. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM H. PArrON, residing at Chicago, in the county of Cook and State of Illinois, and a citizen of the United States, have invented a new and useful Improvement in Motors for Street-Cars, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure 1 is a longitudinal vertical section at line 1 1 of Fig. 2. Fig. 2 is a top or plan view of the parts beneath the floor of the car. Fig. 3 is a similar view showing a different arrangement of parts. Fig. 4 is a longitudinal vertical section atline 4 4 of Fig. 3.

This invention relates to motors for streetcars of the class shown in Letters Patent of the United States, No. 409,116, dated August 13, 1889, granted to me.

Its objects are to improve the construction of the car there shown and described, to provide two motors for the purposes hereinafter described, and to provide means for driving the car in either direction from a single motor, or two motors in the same circuit, without reversing the motor or motors,-which objects I accomplish as illustratedin the drawings, and as hereinafter described.

That which'l claim as new will be pointol out in the claims.

In the drawings, A indicates the car-body and floor, which are mounted upon wheels B in the usual manner. This car-body may be constructed in any suitable form to give space for the operator or driver.

0 0 represent the axles of the wheels B.

D represents an independent frame supported upon or suspended from the axles O. This frame consists of angle-iron bars at, upon which, if desired, may be placed a flooring or platform, although such flooring may not be necessary in many instances.

E represents a gas-engine or other prime motor, which is placed upon the independent frame D.

F is a dynamo, which is also placed upon the independent frame D, and which is driven from the, gas-engine or motor E.

G G represent two electric motors, which are placed upon the independent frame D, and

which drive the axles G C atopposite ends of the car, as shown in Figs. 1 and 2, for the purpose hereinafter stated.

H H represent storage-batteries, which may be suspended from the flooring A of the car.

As heretofore constructed the gas-engine or motor, the dynamo, and the motor were placed upon the floor of the ear, and thelr rapid movements have caused a shaking and jarring of the car, which rendered the carunsuitable for carrying passengers. By the use of a separate frame supported upon or suspended from the axles of the car entirely 1ndependent of the car-body or floor, and placing the engine, dynamo, and motors thereon, the jarring and shaking of the frame D are not communicated to the car-floor and body, so that the car can be used for conveying passengers.

As shown in Figs. 1 and 2, two motors G are used, which are adapted to drive separate axles of the car. By using two motors a great economy of electro-motive force 1s obtained. The operator in starting may employ both motors, thereby utilizing the entire strength of the dynamo and the storage-batteries at the time when the greatest power is needed. "When the car is under way and less power is required in driving the car, the operator can cut out one of the motors by a switch a, which may be operated by any convenientconnecting mechanism. The storagebatteries H II are best placed in a shunt-circuit, so that the current of the dynamo will drive the motor and any surplus electro-motive force will be stored in the batteries H H; but when the motor requires more electromotive force than is supplied by the dynamo the storage-batteries will then assist the dynamo, as in starting the car.

As shown in Figs. 3 and 4, the armature of the motor G is provided with a bevel-pinion g, which is adapted to engage with either one of two pinions I' on a sleeve I, which is mounted on the axle G. Then the pinion g is in engagement with one pinion i, the car will be driven in one direction, and when the pinion g is in engagement with .the other pinion t the car will be driven in the opposite direction. By means of such mechanism the car can be driven in either direction Without reversing the motor G, whichreversing of the current would greatly interfere with the use of the storage-batteries, and would also Waste the electricity to some considerable extent in the use of the motor, even without the "storagebatteries.

In Figs. 1 and 2 I have shown two motors, while only one is shown in Figs. 3 and 4, and in Figs. 3 and 4 I have shown the bevel-gear which is not shown in Figs. 1 and 2; but it will be understood that two motors can be used, employing the bevelgear shown in Figs. 3 and 4 in the ear shown in Figs. 1 and 2, the form of gearing there shown being merely to illustrate the use of the motors in a car which is not to be reversed except by a reversal of the current. Only one motor is shown in Figs. 3 and 4, as one is sufficient to illustrate the use of the reversinggearing.

It will be understood that friction-gear can be used in place of the toothed gear shown, if desired.

I have not particularly described the electrical connections between the dynamo, motors, and storage-batteries, as it is evident that the arrangement of the wires may be varied to suit the necessities of each case, although I prefer to place the storage-batteries in shunt-circuit.

Any suitable levers or connecting devices may be employed'to enable the operator to reverse or stop and start the car or to operate the electric switches as needed.

What I claim as new, and desire to secure by Letters Patent, is

1. The combination, with a car and caraxles, of an independent frame extending from axle to axle and supported thereby, an

electric motor and a dynamo carried by the independent frame beneath the carfloor, a motor mounted on said frame to drive the dynamo, and storage-batteries electricallyconnected with the dynamo and the electric motor and co-operating wit-h the dynamo for starting the car, substantially as described.

2. The combination, with a car and caraxles, of an independent frame extending from axle to axle and supported thereby, a pair of electric motors arranged, respectively, near the axles upon the opposite ends of the independent frame beneath the carfloor, a dynamo located on said frame between the axles and electric motors, an engine on the frame and driving the dynamo, an electric circuit including the dynamo and the pair of electric motors, and a switch for cutting out one of the electric motors while the other drives the car, substantially as described.

3. The combination, with a car and caraxles, of an independent frame supported by the axles, a pair of electric motors arranged, respectively, near the axles upon the opposite ends of the independent frame beneath the car-floor, a dynamo located on said frame between the electric motors, an engine on the frame for driving a dynamo, the storage-batteries co-operating with the dynamo for driving the two electric motors, an electric circuit including the dynamo, the pair of electric motors and the storage-batteries, and a switch for cutting out one of the electric motors while the other drives the-car, substantially as described.

4. The combination, with a car and a caraxle having a sleeve provided with a pair of bevel-pinions, of a rotary electric motor having its revolving armature-shaft provided with an attached bevel-pinion interposed between and adapted to directly engage either of the two pinions on the sleeve, substantially as described. i

5. The combination, with a car and a caraxle having a sleeve provided with a pair of bevel-pinions, of an independent frame supported by the car-axles, a dynamo, an engine for driving the dynamo, an electric motor having its armature shaft provided with a bevel-pinion interposed between and adapted to engage either of the pinions on the sleeve, and a storage-battery co-operating with the dynamo to drive the electric motor, substantially as described.

WILLIAM H. PATTON.

Witnesses:

.HARRY T. J ONES,

ALBERT H. ADAMS. 

